Dobby.



No. 648,69I. l Patented May I, |900.

F. KESSELRING.

DBBY.

(Application ledDec. 13, 1899.)

(No Model.)

WITNESSES: h l'NVl-NTORl m muuumluu uuu 3M n BY Y ATTORNEYS Nrrsl FRIEDRICH KESSEI,RINGl7 OF STERLING, NEV JERSEY.

coser.

srncrrrca'rron forming part of Leners Patent No, 648,691, date may 1,1900. Application le December 13, 1899. Serial No. 740,173. (No model.)

To @ZZ whom t may concern.-

Be it known that I, FRIEDRICH KESSELRING, a citizen of the United States,residin g in Sterling, county of Morris,- and State of New .Ierd sey,- have invented certain new and useful Improvements in -Dobbies; and I do hereby deelare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference beinghad to the accompanying'drawings, and to letters and figures of reference markedthereon, which form a part of this specification.

This invention relates to shedding mechanisms for looms; and its object is to provide a mechanism of this nature comprising a certain improved construction and directly interconnected arrangement of levers for controlling the harness whereby actuation of said levers involves their movementin relatively-opposite directions,and thus while the one is adaptv edI to positively act on a portion of the harness the other tends to give way to the remainder of said harness.

'made use of in connection with the levers a adesignate two plates or uprights of approXima`tely-rectangular form ,which together constitute the frame of my shedding mechanism and which are adapted to be supported upon the loom-frame as usual. These plates or uprights are connected by shafts b, c, and d, the shafts b and d being rock-shafts and disposed at the upper corners of said uprights and the shaft c being set in'vertical arms or standards e, which form integral portions of said plates or uprights.

f f are two spaced levers which are suspended from theshaft d, to which they are rigidly secured at their 'upper ends and which forms a fulcrum for them. Said levers are connected at their lower ends by a bar g, that, is beveled to produce what is technically known as the knife. Upon the shaftb is also rigidly secured another lever 71 said lever projecting substantially at right angles to theplevers f and being disposed on the, shaft preferably midway between said levers f. The free end of this lever h is enlarged vertically and provided with teeth 27, thus constituting a toothed segment. j j are otherlevers which are mounted upon the shaft d, being rigidly secured together at their upper ends and connected at their lower ends by a bar k. Upon the shaft d and extending therefrom substantially at right angles to the lever j is rigidly secured another lever m, thislever having its free end vertically enlarged and provided with teeth n thelsame as the lever h. It will be seen that the interconnected parts f and h, on one hand,and the interconnected partsj and m,on the other, in each case constitute a bell-crank lever. The arms or levers m and h project toward each other and their toothed extremities are in mesh with each other. The shaft d is extended at one end beyond the frame of the mechanism, and to this extension of said shaft is secured one end of a lever o. (Shown in full lines vvin Fig. 2 and in dot-and-dash lines in Fig. l.) When the lever o is vibrated, it will be seen that the bell-crank lever comprising the parts j and m will also be vibrated and that the movement will be transferred to` the bell-crank lever comprised in the parts f and h. It will further be observed that the movements of the levers j and f will always be in opposite directions.

In view of the. foregoing description any one skilled in the art to which my invention apper'tains will understandthatwith slight changes in the way of addition of details the harness-cord can be, in effect, directly connected to the levers f and j, so that the mechanism maybe used to eect the simultaneous lowering of one half of the harness andv rais- IOO ing of the other half-#that is to say',y the 5 tant reason Why it is more desirable than the other kinds of mechanism above referred to for producing the simplest harness movements.

Where it is desired to employthe motion- 1o above refer-red to in lconnection with a patd tern-chain and jacks for producing more complicated designs, I have provided also the mechanism now to be described to edect this.

In hangers p,- Which are adjustably secured x 5 to the plates or nprights a, are journaled the 2o a-re guided in slotted plates or grids o, also connecting said plates a, the one of said grids being disposed at the forward lower corners of 'said plates and the other being bolted to projections w thereon.

Freely suspended fromthe shaft c is a series of elongated plates or strips the pivoted end of each strip having an integral collar fy on one of its faces and the free end of said strip being enlarged or thickened, as at e',

3o said' collars and the thickened portions of the strips affording spacing means therefor.

1 designates eyes, which are secured to the rear sides of the strips w and to which the harness-cords 2 may be attached.

3 are the jacks. These jacks are pivotally connected to the strips or plates a: at their rear ends and extend horizontally forward therefrom, their free ends being formed in the shape of hooks 4. Said jacks are guided 4o'in the inner grid 0, being situated over the lingers t. The hooked ends of said jacks are adapted to rest on and engage the knife g. The rear or innermost ends of the ingerst are upturned, as at 5, and normally extend into contact with the under sides of the jacks,

the outer ends of said fingers being their longer and weightier ones and being, there-v fore, normally adapted to tilt the fingers so as to lift the jacks.

dnces the lifting of the outer ends of the fingers, and the result of this is the lowering of certain of t-he jacks, so that the 'vibrating knife g can engage said jacks and draw them forward and, through the suspended strips rv,

6o plates each time the parts return to their rest position-z2 e., thatsh'own in Fig. .'l-and that at this time said bar acts as an abutment for leveling the strips, and consequently the harness. If said bar is so arranged that when the parts are in their. rest position it tends to slightly pushall the strips so, the hooks `et of the jacks will be out of frictional contact The operation of the card-cylinderpro-` with the acting edge of the knife g and said jacks Will be perfectly free to be lifted by the fingers When the mechanism is again pnt in motion.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent,'is-

' l. In'falshedding mechanism, the combina- `tion of a suitable frame, operatively `con nected levers fulcrnmed therein, said levers extending in approximately the same direction but being movable in relatively-opposite directions, movable devices engaging one of said levers, harness-cords connected to said del vices and adapted to maintain them in contact with said lever, jacks also connected to said devices and adapted to engage the other of said levers, jack-controlling means, and operating means connected to one of said levers, substantially-as described. I

2. In a shedding mechanism, the combination of a suitable frame, operatively-connected levers fulcrnmed therein, said levers extending in approximately the same direction but being movable in relatively-opposite directions, fulcrnmed devices normally contacting and movable with one of said levers, harness-cords connected to said devices and adapted to maintain them in contact with said lever, jacks also connected to said devices and adapted to engage the other of said levers, jack-controlling means, and operating means connected to one of said levers, `substantially 'as described.

3. In a shedding mechanism, the combination of a suitable frame, bell-crank levers ful-y 'cords connected to said devices and adapted to maintain them in contact with said lever, jacks connected to said devices and adapted to engage the other of said levers, jack-controlling means, and operating 'means connected to one of said levers, substantially as described.

4. In a shedding mechanism, the combination of a suitable frame, bell-'cranklevers fulcrnmed therein, ene arm of each lever having a toothed portion and said toothed portions intermeshing, suspended members, harnesscords connected to said members, jacks pivotally connected to said members, jack-controlling mechanism, a knife carried by the free arm of one of said levers and adapted to engage said jacks, a leveling-bar carried by the free arm of the other of said levers and adaptedto engage said members, and operating means connected lto one of said levers, substantially as described.

5. In a shedding mechanism, the combination of a suitable frame, bell-crank levers f ulcrnmed therein, one arm of each lever having IOO I OS

IIO

a toothed portion and saidv toothed' portions V Y to one of said levers, substantially as described.

In testimony that I claim the foregoing I have hereunto set my hand this 16th day of October, 1899.

FRIEDRICH KESSELRING.

Witnesses:

ALFRED GARTNER, Y J. B. NEWTON. 

